CREATE TABLE default.rename_table\n(\n    `key` Int32,\n    `old_value1` Int32,\n    `value1` Int32\n)\nENGINE = MergeTree\nORDER BY tuple()\nSETTINGS index_granularity = 8192
key	old_value1	value1
1	2	3
CREATE TABLE default.rename_table\n(\n    `k` Int32,\n    `v1` Int32,\n    `v2` Int32\n)\nENGINE = MergeTree\nORDER BY tuple()\nSETTINGS index_granularity = 8192
k	v1	v2
1	2	3
4	5	6
---polymorphic---
CREATE TABLE default.rename_table_polymorphic\n(\n    `key` Int32,\n    `old_value1` Int32,\n    `value1` Int32\n)\nENGINE = MergeTree\nORDER BY tuple()\nSETTINGS min_rows_for_wide_part = 10000, index_granularity = 8192
key	old_value1	value1
1	2	3
CREATE TABLE default.rename_table_polymorphic\n(\n    `k` Int32,\n    `v1` Int32,\n    `v2` Int32\n)\nENGINE = MergeTree\nORDER BY tuple()\nSETTINGS min_rows_for_wide_part = 10000, index_granularity = 8192
k	v1	v2
1	2	3
4	5	6